What does the word fourth mean?

Usage examples for fourth

  1. And is not the fourth year by far the best of the four? – On the Firing Line in Education by Adoniram Judson Ladd
  2. The time for the departure of the Fourth Artillery had come. – Mrs. Skaggs's Husbands and Other Stories by Bret Harte
  3. The fourth gave life to the thing, and it was a lion. – Twenty-two Goblins by Unknown